package com.mune.gulimall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.mune.common.utils.PageUtils;
import com.mune.common.utils.Query;
import com.mune.gulimall.product.dao.AttrGroupDao;
import com.mune.gulimall.product.entity.AttrEntity;
import com.mune.gulimall.product.entity.AttrGroupEntity;
import com.mune.gulimall.product.service.AttrGroupService;
import com.mune.gulimall.product.service.AttrService;
import com.mune.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.mune.gulimall.product.vo.SkuItemVo;
import com.mune.gulimall.product.vo.SpuItemAttrGroupVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {
  @Autowired
  AttrService attrService;

  @Override
  public PageUtils queryPage(Map<String, Object> params) {
    IPage<AttrGroupEntity> page = this.page(
            new Query<AttrGroupEntity>().getPage(params),
            new QueryWrapper<AttrGroupEntity>()
    );

    return new PageUtils(page);
  }

  @Override
  public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
    String key = (String) params.get("key");
    QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<>();
    if (!StringUtils.isEmpty(key)) {
      wrapper.and((obj) -> {
        obj.eq("attr_group_id", key).or().like("attr_group_name", key);
      });
    }

    if (catelogId == 0) {
      IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
              wrapper);
      return new PageUtils(page);
    } else {
      wrapper.eq("catelog_id", catelogId);
      IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
              wrapper);
      return new PageUtils(page);
    }
  }

  /**
   * 根据分类ID查出所有的分组以及这些分组下的属性
   *
   * @param catelogId
   * @return
   */
  @Override
  public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
    // 查询分组信息
    List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
    // 查询所有属性
    List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(group -> {
      AttrGroupWithAttrsVo vo = new AttrGroupWithAttrsVo();
      BeanUtils.copyProperties(group, vo);
      List<AttrEntity> attrs = attrService.getRelationAttr(vo.getAttrGroupId());
      vo.setAttrs(attrs);
      return vo;
    }).collect(Collectors.toList());
    return collect;
  }

  @Override
  public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {

    List<SpuItemAttrGroupVo> vos = this.baseMapper.getAttrGroupWithAttrsBySpuId(spuId, catalogId);
    return vos;
  }

}